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2.1.3 External
In this mode, the audio serial interface clocks for the evaluation board are provided through connector J7 from
an external source. This architecture allows the use of an external system to communicate with the evaluation
board, such as a different host processor or test equipment (for instance, Audio Precision PSIA). The clocks
generated from the USB interface and PCM9211 are isolated with this setting.
audio setting for the external mode of operation.
Figure 2-4
shows how to connect the external audio interface, with the bottom row for the signal and the top row
for ground.
Figure 2-4. AC-MB Connection with External Audio Serial Interface
SLAU896 – JULY 2023
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Figure 2-3. AC-MB External Audio Setting
Copyright © 2023 Texas Instruments Incorporated
Figure 2-3
shows the AC-MB
TAS2574 Evaluation Module
Hardware
5
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